Can you believe the Pretty Little Liars writers are already hard at work on the Season 3 finale? Showrunner Marlene King has been dropping clues about the episode, and now she's added the most cryptic one yet.

Read spoilers at your own risk! For more on Wetpaint Entertainment's philosophy on spoilers, click here.

Marlene tweeted this adorable photo of a dog, saying, "Oddly enough, here's one more finale clue."

Odd, indeed! How does this adorable dog relate to the finale?

We have two ideas. First, the dog is wearing red. Marlene has often said, cryptically, "red is the new black," and recently reiterated that, tweeting, "3B promises to deliver on red being the new black." So maybe the cute puppy is a distraction, and she wants us to focus on the color. That would connect to the red lips she's previously tweeted as a clue.

However, it's also worth noting that this adorable doggie appears to be in front of a Christmas tree. Could the finale take place around Christmas? Although the new season doesn't start until January — and therefore the finale will be in early spring — Rosewood's timeline doesn't always match up with the real-world timeline, so this is a possibility.

Or maybe this is related to the dog that barks ominously at the end of the Halloween episode. Maybe there will be more creepy barking! Hey, just throwing it out there...

Find more Pretty Little Liars spoilers here.

Don’t miss the next new episode of PLL, the Halloween special, on Tuesday, October 23 at 8 p.m. ET/PT on ABC Family.

Source: @imarleneking, @imarleneking

Get your Pretty Little Liars fix: Like us on Facebook and Follow us on Twitter and Tumblr!